In this review, the CAT ODB performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a short barrel gas-operated rifle, which is an incredibly difficult task. The CAT ODB represents one of the most advanced systems evaluated by PEW Science, to date. The silencer is available in two 3D-printed material options proprietary Inconel alloy and Titanium. Notably, the CAT SURGE BYPASS technology in the silencer appears to balance high flow rate behavior with superior overall signature suppression, even when over-bored for the cartridge. Its sound suppression performance on a short barrel 5.56x45mm rifle is significant. The CAT/ODB/A1/718 (CAT ODB) is a relatively compact and extremely advanced 30 caliber machine gun rated rifle silencer that exhibits significant back pressure reduction and sound signature suppression performance, for its size and caliber designation. This supplement is part of ongoing PEW Science small arm weapon system sound signature research. Both FRP and total sound signature suppression regimes are examined. This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations in the aforementioned reviews and to help frame objective loudness comparisons between five 30 caliber rifle silencers that use various technologies to suppress subsonic 300 BLK sound signatures. Quantifying these performance differentials is essential for characterizing hazards to the system operator and bystanders. However, certain designs may significantly outperform others in this regard. In general, increasing gross flow rate through a silencer can significantly reduce signature suppression performance, particularly with subsonic ammunition. Many silencers exhibit significantly different performance when using supersonic and subsonic ammunition. Their subsonic 300 BLK suppression performance provides an excellent case study comparing current rifle silencer technology. The five silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. The silencers in this group were selected for their relevance to the three rifle silencer technology classes: Conventional, High Flow Rate, and Hybrid Design. 300 just has too many long term advantages to ignore.Five silencers evaluated by PEW Science are included in this members-only Research Supplement to examine relative First Round Pop (FRP) and overall sound signature suppression performance characteristics. you are supposed to know your background and your target ! Shit.22lr will go through a car door !Īgain. The 9mm shines in the cost per round if you are a heavy plinker and in the area of available proven expanding bullet choices. Hunting with a suppressed, subsonic rifle round means you should be aiming for tight CNS impacts. Rifle bullets just aren't designed to work at 850-1000fps impact speeds. A fair number of hunters claim excessive upset when using subsonics and thus causing significant internal damage. The best terminal ballistics in subsonic calibers come from large bore loaded with heavy pistol bullets. Any rapid decrease in forward motion and spin causes the bullet to tumble.or want to become unstable. If you feel the need you can abandon the subsonics and go 110's 2400 wich will surpass any 9mm load.ĭue to the length of the bullet and at subsonic speeds the bullet is right on the edge of being unstable. Slips through the air with less friction and thus carries more energy down range at Greater distances than you can get from pistol bullets. 5.56 has less magazine options so no Bakelite or plum magazines. Long grooves in its gilding metal jacket. The Sub-X bullet used in Subsonic Rifle features a lead core. Subsonic Handgun utilizes tried-and-true XTP bullets that expand reliably at subsonic velocities. My slr106 is loaded with Hornady TAP 75 grain. Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. Starting off with increased energy at the muzzle is always good. 5.45 is a very capable round in its own right but if you’re living in the US, domestic 5.56 shelf options are insane to deny yourself of them over 5.45. I have one but I am not a fan boy.300 excels in a very narrow niche.įirst off you can throw a 220gn round at 1050 instead of a 147gn. In this comparison.300 is still the better choice.
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